1. The figure
Check what comparable homes support
Start with evidence from genuinely similar properties. Location, bedrooms, condition, furnishings and included services can matter more than a broad area average.
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Form 4A evidence
What evidence should a landlord check before serving Form 4A?
Before you serve Form 4A, make sure the rent figure and the evidence behind it are telling the same story. The form is much easier to stand behind when the number has been checked first.
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2. The evidence
Keep a record of the comparison
Save the listings, dates and reasons for including or excluding each comparable. A clear evidence trail is more useful than a long list of properties that do not match the let.
3. The route
Choose paperwork that fits the risk
A supportable proposal can follow the standard notice route. Existing objections, weak comparables or a likely tribunal challenge call for a fuller evidence and response file.
The form is not the whole file
Form 4A matters, but it does not make a weak figure stronger by itself. If the tenant asks why the rent is going up, the answer has to come from the comparables and the way the file has been put together.
That is why the checker belongs before the paid pack. It helps you test the number and the market position before those details are locked into the final notice.
Check the evidence before service
Use the free tool to see whether the proposed figure is in the supportable range and whether challenge risk is already visible.
Then the paid pack becomes a cleaner follow-on step: Standard if the file is straightforward, Defence if the rent or the likely response needs more preparation.
Your next decision
Check first, then prepare only what the case needs
Use the free checker to test the proposed rent and the strength of the evidence. If the result supports the increase, continue to the notice route. If the tenant has objected or the evidence is borderline, review the challenge route before serving anything. This keeps the paid step tied to the facts instead of asking you to choose a pack too early.
